#include "muduo/proto/codec.h"
#include "muduo/proto/dispatcher.h"
#include "request.pb.h"

#include "muduo/base/Logging.h"
#include "muduo/base/Mutex.h"
#include "muduo/net/EventLoop.h"
#include "muduo/net/TcpClient.h"
#include "muduo/net/EventLoopThread.h"
#include "muduo/base/CountDownLatch.h"


#include <iostream>

class Client{
public:
    typedef std::shared_ptr<dyn::AddResponse> AddResponsePtr;
    typedef std::shared_ptr<dyn::TranslateResponse> TranslateResponsePtr;
    Client(const std::string &sip, int sport):
        _latch(1), _client(_loopthread.startLoop(), muduo::net::InetAddress(sip, sport), "Client"),
        _dispatcher(std::bind(&Client::onUnknownMessage, this, std::placeholders::_1, 
                                std::placeholders::_2, std::placeholders::_3)),
        _codec(std::bind(&ProtobufDispatcher::onProtobufMessage, &_dispatcher,
                                std::placeholders::_1, std::placeholders::_2, std::placeholders::_3)){

        _dispatcher.registerMessageCallback<dyn::TranslateResponse>(std::bind(&Client::onTranslate, this,
                                        std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));
        _dispatcher.registerMessageCallback<dyn::AddResponse>(std::bind(&Client::onAdd, this,
                                        std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));

        _client.setMessageCallback(std::bind(&ProtobufCodec::onMessage, &_codec,
                                std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));
        _client.setConnectionCallback(std::bind(&Client::onConnection, this, std::placeholders::_1));
    }
        
    void connect(){
        _client.connect();
        _latch.wait();
    }
    void Translate(const std::string &msg){
        dyn::TranslateRequest req;
        req.set_msg(msg);
        send(&req);
    }
    void Add(int num1, int num2){
        dyn::AddRequest req;
        req.set_num1(num1);
        req.set_num2(num2);
        send(&req);
    }
private:
    bool send(const google::protobuf::Message *message){
        if (_conn->connected()){
            _codec.send(_conn, *message);
            return true;
        }
        return false;
    }

    void onTranslate(const muduo::net::TcpConnectionPtr& conn, const TranslateResponsePtr& message, muduo::Timestamp){
        std::cout << "翻译结果：" << message->msg() <<std::endl;
    }
    void onAdd(const muduo::net::TcpConnectionPtr& conn, const AddResponsePtr& message, muduo::Timestamp){
        std::cout << "加法结果：" << message->result() <<std::endl;
    }

     void onUnknownMessage(const muduo::net::TcpConnectionPtr& conn, const MessagePtr& message, muduo::Timestamp){
        LOG_INFO << "onUnknownMessage: " << message->GetTypeName();
        conn->shutdown();
    }
    void onConnection(const muduo::net::TcpConnectionPtr &conn){
        if (conn->connected()){
            _latch.countDown();
            _conn = conn;
        }else{
            _conn.reset();
        }
    }

private:
    muduo::CountDownLatch _latch;//实现同步的
    muduo::net::EventLoopThread _loopthread;//异步循环处理线程
    muduo::net::TcpConnectionPtr _conn;//客户端对应的连接
    muduo::net::TcpClient _client;//客户端
    ProtobufDispatcher _dispatcher;//请求分发器
    ProtobufCodec _codec;//协议处理器
};

int main(){
    Client client("127.0.0.1", 8085);
    client.connect();

    client.Translate("hello");
    client.Translate("吃了吗");
    client.Add(11, 22);

    sleep(1);
    return 0;
}